GE PACSystems RX3i IC695ACC400 RX3i Energy Pack The GE IC695ACC400 is a PACSystems RX3i Energy Pack used with specified RX3i controller CPUs. During a system power loss, it maintains CPU power long enough for user memory to be written to non-volatile flash memory. Catalog No. IC695ACC400 RX3i Energy Pack Memory Preservation Product Function Energy backup for RX3i CPU memory preservation IC695ACC400 provides the Energy Pack function for applicable RX3i CPUs. When system power